Wednesday, January 13, 2010

STM-1

The STM-1 frame is the basic transmission format for SDH. A STM-1 signal has a byte-oriented structure with 9 rows and 270 columns of bytes with a total of 2430 bytes (9 rows * 270 columns = 2430 bytes). Each byte corresponds to a 64kbit/s channel.

Rate (Frame capacity): : 2430 x 8 x 8000 = 155.520 Mbit/s.

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